﻿using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace WinFormExam
{
    class DbHelper
    {
        private static readonly  string conString = "server=.;database=Blogs;uid=sa;pwd=123456";
        public static DataTable GetDataTable(string sql)
        {         
            SqlConnection sqlConnection = new SqlConnection(conString);            
            SqlDataAdapter dataAdapter = new SqlDataAdapter(sql, sqlConnection);
            DataTable data = new DataTable();
            sqlConnection.Open();
            dataAdapter.Fill(data);
            return data;
        }
        public static int AddOrEditOrDeleteSave(string sql)
        {
            SqlConnection sqlConnection = new SqlConnection(conString);
            SqlCommand sqlCommand = new SqlCommand(sql,sqlConnection);
            sqlConnection.Open();
             return sqlCommand.ExecuteNonQuery();
        }

    }
}
